rose·bay /ˈrozˌbe/
  夾竹桃,石南屬的植物
  Rose·bay n. Bot. (a) the oleander. [Obs.] (b) Any shrub of the genus Rhododendron. [U.S.] (c) An herb (Epilobium spicatum) with showy purple flowers, common in Europe and North America; -- called also great willow herb.
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  rosebay
       n : late-spring-blooming rhododendron of eastern North America
           having rosy to pink-purple flowers [syn: Rhododendron
           maxima]